Douglas Klahr

Papers

Total Citations

394

H-Index

About

Douglas Klahr is a pioneering figure in the study of cognitive development and scientific reasoning. His research focuses on how children and adults formulate hypotheses, design experiments, and evaluate evidence—fundamental processes underlying scientific thinking. Klahr's most influential work, "Heuristics for Scientific Experimentation: A Developmental Study" (1993, 394 citations), revealed that even young children employ sophisticated strategies for testing causal relationships, challenging long-held assumptions about cognitive limitations. He is best known for developing the "Scientific Discovery as Dual Search" (SDDS) model, which frames scientific reasoning as a coordinated search through hypothesis and experiment spaces. This framework has profoundly shaped educational practices, inspiring curricula that teach children to think like scientists. Klahr’s impact is evident in his citation counts, with his work on experimentation heuristics alone garnering nearly 400 references. A recipient of the American Psychological Association’s Distinguished Scientific Contribution Award, his research continues to influence fields from developmental psychology to science education. For students and researchers, Klahr’s legacy demonstrates that the roots of scientific inquiry are present from early childhood, waiting to be nurtured.